// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
-// $Id: packagemanager.cc,v 1.2 1998/07/09 05:41:12 jgg Exp $
+// $Id: packagemanager.cc,v 1.30 2003/04/27 03:04:15 doogie Exp $
/* ######################################################################
Package Manager - Abstacts the package manager
##################################################################### */
/*}}}*/
// Include Files /*{{{*/
-#ifdef __GNUG__
-#pragma implementation "pkglib/packagemanager.h"
-#endif
-#include <pkglib/packagemanager.h>
-#include <pkglib/orderlist.h>
-#include <pkglib/depcache.h>
-#include <pkglib/error.h>
-#include <pkglib/version.h>
+#include<config.h>
+
+#include <apt-pkg/packagemanager.h>
+#include <apt-pkg/orderlist.h>
+#include <apt-pkg/depcache.h>
+#include <apt-pkg/error.h>
+#include <apt-pkg/version.h>
+#include <apt-pkg/acquire-item.h>
+#include <apt-pkg/algorithms.h>
+#include <apt-pkg/configuration.h>
+#include <apt-pkg/sptr.h>
+
+#include <iostream>
+#include <fcntl.h>
+
+#include <apti18n.h>
/*}}}*/
+using namespace std;
+
+bool pkgPackageManager::SigINTStop = false;
// PM::PackageManager - Constructor /*{{{*/
// ---------------------------------------------------------------------
/* */
-pkgPackageManager::pkgPackageManager(pkgDepCache &Cache) : Cache(Cache)
+pkgPackageManager::pkgPackageManager(pkgDepCache *pCache) : Cache(*pCache),
+ List(NULL), Res(Incomplete)
{
FileNames = new string[Cache.Head().PackageCount];
- List = 0;
+ Debug = _config->FindB("Debug::pkgPackageManager",false);
+ NoImmConfigure = !_config->FindB("APT::Immediate-Configure",true);
+ ImmConfigureAll = _config->FindB("APT::Immediate-Configure-All",false);
}
/*}}}*/
// PM::PackageManager - Destructor /*{{{*/
delete [] FileNames;
}
/*}}}*/
+// PM::GetArchives - Queue the archives for download /*{{{*/
+// ---------------------------------------------------------------------
+/* */
+bool pkgPackageManager::GetArchives(pkgAcquire *Owner,pkgSourceList *Sources,
+ pkgRecords *Recs)
+{
+ if (CreateOrderList() == false)
+ return false;
+
+ bool const ordering =
+ _config->FindB("PackageManager::UnpackAll",true) ?
+ List->OrderUnpack() : List->OrderCritical();
+ if (ordering == false)
+ return _error->Error("Internal ordering error");
+
+ for (pkgOrderList::iterator I = List->begin(); I != List->end(); ++I)
+ {
+ PkgIterator Pkg(Cache,*I);
+ FileNames[Pkg->ID] = string();
+
+ // Skip packages to erase
+ if (Cache[Pkg].Delete() == true)
+ continue;
+
+ // Skip Packages that need configure only.
+ if (Pkg.State() == pkgCache::PkgIterator::NeedsConfigure &&
+ Cache[Pkg].Keep() == true)
+ continue;
+
+ // Skip already processed packages
+ if (List->IsNow(Pkg) == false)
+ continue;
+
+ new pkgAcqArchive(Owner,Sources,Recs,Cache[Pkg].InstVerIter(Cache),
+ FileNames[Pkg->ID]);
+ }
+
+ return true;
+}
+ /*}}}*/
// PM::FixMissing - Keep all missing packages /*{{{*/
// ---------------------------------------------------------------------
/* This is called to correct the installation when packages could not
be downloaded. */
bool pkgPackageManager::FixMissing()
-{
- unsigned char *Touch = new unsigned char[Cache.Head().PackageCount];
- for (PkgIterator I = Cache.PkgBegin(); I.end() == false; I++)
+{
+ pkgDepCache::ActionGroup group(Cache);
+ pkgProblemResolver Resolve(&Cache);
+ List->SetFileList(FileNames);
+
+ bool Bad = false;
+ for (PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I)
{
- // Create the status list that ResolveConflicts needs
- if ((Cache[I].DepState & pkgDepCache::DepNowMin) == pkgDepCache::DepNowMin)
- Touch[I->ID] = (1 << 0) | (1 << 1);
- else
- Touch[I->ID] = 1 << 1;
-
- if (Cache[I].Keep() == true)
- continue;
- if (FileNames[I->ID].empty() == false || Cache[I].Delete() == true)
+ if (List->IsMissing(I) == false)
continue;
- Cache.MarkKeep(I);
+
+ // Okay, this file is missing and we need it. Mark it for keep
+ Bad = true;
+ Cache.MarkKeep(I, false, false);
}
+
+ // We have to empty the list otherwise it will not have the new changes
+ delete List;
+ List = 0;
+
+ if (Bad == false)
+ return true;
// Now downgrade everything that is broken
- Cache.ResolveConflicts(Touch);
- delete [] Touch;
+ return Resolve.ResolveByKeep() == true && Cache.BrokenCount() == 0;
+}
+ /*}}}*/
+// PM::ImmediateAdd - Add the immediate flag recursivly /*{{{*/
+// ---------------------------------------------------------------------
+/* This adds the immediate flag to the pkg and recursively to the
+ dependendies
+ */
+void pkgPackageManager::ImmediateAdd(PkgIterator I, bool UseInstallVer, unsigned const int &Depth)
+{
+ DepIterator D;
+
+ if(UseInstallVer)
+ {
+ if(Cache[I].InstallVer == 0)
+ return;
+ D = Cache[I].InstVerIter(Cache).DependsList();
+ } else {
+ if (I->CurrentVer == 0)
+ return;
+ D = I.CurrentVer().DependsList();
+ }
- return Cache.BrokenCount() == 0;
+ for ( /* nothing */ ; D.end() == false; ++D)
+ if (D->Type == pkgCache::Dep::Depends || D->Type == pkgCache::Dep::PreDepends)
+ {
+ if(!List->IsFlag(D.TargetPkg(), pkgOrderList::Immediate))
+ {
+ if(Debug)
+ clog << OutputInDepth(Depth) << "ImmediateAdd(): Adding Immediate flag to " << D.TargetPkg() << " cause of " << D.DepType() << " " << I.FullName() << endl;
+ List->Flag(D.TargetPkg(),pkgOrderList::Immediate);
+ ImmediateAdd(D.TargetPkg(), UseInstallVer, Depth + 1);
+ }
+ }
+ return;
}
/*}}}*/
+// PM::CreateOrderList - Create the ordering class /*{{{*/
+// ---------------------------------------------------------------------
+/* This populates the ordering list with all the packages that are
+ going to change. */
+bool pkgPackageManager::CreateOrderList()
+{
+ if (List != 0)
+ return true;
+
+ delete List;
+ List = new pkgOrderList(&Cache);
+ if (Debug && ImmConfigureAll)
+ clog << "CreateOrderList(): Adding Immediate flag for all packages because of APT::Immediate-Configure-All" << endl;
+
+ // Generate the list of affected packages and sort it
+ for (PkgIterator I = Cache.PkgBegin(); I.end() == false; ++I)
+ {
+ // Ignore no-version packages
+ if (I->VersionList == 0)
+ continue;
+
+ // Mark the package and its dependends for immediate configuration
+ if ((((I->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential) &&
+ NoImmConfigure == false) || ImmConfigureAll)
+ {
+ if(Debug && !ImmConfigureAll)
+ clog << "CreateOrderList(): Adding Immediate flag for " << I.FullName() << endl;
+ List->Flag(I,pkgOrderList::Immediate);
+
+ if (!ImmConfigureAll) {
+ // Look for other install packages to make immediate configurea
+ ImmediateAdd(I, true);
+
+ // And again with the current version.
+ ImmediateAdd(I, false);
+ }
+ }
+
+ // Not interesting
+ if ((Cache[I].Keep() == true ||
+ Cache[I].InstVerIter(Cache) == I.CurrentVer()) &&
+ I.State() == pkgCache::PkgIterator::NeedsNothing &&
+ (Cache[I].iFlags & pkgDepCache::ReInstall) != pkgDepCache::ReInstall &&
+ (I.Purge() != false || Cache[I].Mode != pkgDepCache::ModeDelete ||
+ (Cache[I].iFlags & pkgDepCache::Purge) != pkgDepCache::Purge))
+ continue;
+
+ // Append it to the list
+ List->push_back(I);
+ }
+
+ return true;
+}
+ /*}}}*/
// PM::DepAlwaysTrue - Returns true if this dep is irrelevent /*{{{*/
// ---------------------------------------------------------------------
/* The restriction on provides is to eliminate the case when provides
bool pkgPackageManager::CheckRConflicts(PkgIterator Pkg,DepIterator D,
const char *Ver)
{
- for (;D.end() == false; D++)
+ for (;D.end() == false; ++D)
{
- if (D->Type != pkgCache::Dep::Conflicts)
+ if (D->Type != pkgCache::Dep::Conflicts &&
+ D->Type != pkgCache::Dep::Obsoletes)
+ continue;
+
+ // The package hasnt been changed
+ if (List->IsNow(Pkg) == false)
continue;
- if (D.ParentPkg() == Pkg)
+ // Ignore self conflicts, ignore conflicts from irrelevent versions
+ if (D.IsIgnorable(Pkg) || D.ParentVer() != D.ParentPkg().CurrentVer())
continue;
- if (pkgCheckDep(D.TargetVer(),Ver,D->CompareOp) == false)
+ if (Cache.VS().CheckDep(Ver,D->CompareOp,D.TargetVer()) == false)
continue;
- if (List->IsNow(Pkg) == false)
- continue;
-
if (EarlyRemove(D.ParentPkg()) == false)
- return false;
- }
+ return _error->Error("Reverse conflicts early remove for package '%s' failed",
+ Pkg.FullName().c_str());
+ }
return true;
}
/*}}}*/
// PM::ConfigureAll - Run the all out configuration /*{{{*/
// ---------------------------------------------------------------------
/* This configures every package. It is assumed they are all unpacked and
- that the final configuration is valid. */
+ that the final configuration is valid. This is also used to catch packages
+ that have not been configured when using ImmConfigureAll */
bool pkgPackageManager::ConfigureAll()
{
- pkgOrderList OList(Cache);
+ pkgOrderList OList(&Cache);
// Populate the order list
- for (pkgOrderList::iterator I = List->begin(); I != List->end(); I++)
+ for (pkgOrderList::iterator I = List->begin(); I != List->end(); ++I)
if (List->IsFlag(pkgCache::PkgIterator(Cache,*I),
pkgOrderList::UnPacked) == true)
OList.push_back(*I);
if (OList.OrderConfigure() == false)
return false;
-
+
+ std::string const conf = _config->Find("PackageManager::Configure","all");
+ bool const ConfigurePkgs = (conf == "all");
+
// Perform the configuring
- for (pkgOrderList::iterator I = OList.begin(); I != OList.end(); I++)
+ for (pkgOrderList::iterator I = OList.begin(); I != OList.end(); ++I)
{
PkgIterator Pkg(Cache,*I);
- if (Configure(Pkg) == false)
+ /* Check if the package has been configured, this can happen if SmartConfigure
+ calls its self */
+ if (List->IsFlag(Pkg,pkgOrderList::Configured)) continue;
+
+ if (ConfigurePkgs == true && SmartConfigure(Pkg, 0) == false) {
+ if (ImmConfigureAll)
+ _error->Error(_("Could not perform immediate configuration on '%s'. "
+ "Please see man 5 apt.conf under APT::Immediate-Configure for details. (%d)"),Pkg.FullName().c_str(),1);
+ else
+ _error->Error("Internal error, packages left unconfigured. %s",Pkg.FullName().c_str());
return false;
+ }
List->Flag(Pkg,pkgOrderList::Configured,pkgOrderList::States);
}
/*}}}*/
// PM::SmartConfigure - Perform immediate configuration of the pkg /*{{{*/
// ---------------------------------------------------------------------
-/* This routine scheduals the configuration of the given package and all
- of it's dependents. */
-bool pkgPackageManager::SmartConfigure(PkgIterator Pkg)
-{
- pkgOrderList OList(Cache);
-
- if (DepAdd(OList,Pkg) == false)
- return false;
+/* This function tries to put the system in a state where Pkg can be configured.
+ This involves checking each of Pkg's dependanies and unpacking and
+ configuring packages where needed.
- if (OList.OrderConfigure() == false)
- return false;
+ Note on failure: This method can fail, without causing any problems.
+ This can happen when using Immediate-Configure-All, SmartUnPack may call
+ SmartConfigure, it may fail because of a complex dependancy situation, but
+ a error will only be reported if ConfigureAll fails. This is why some of the
+ messages this function reports on failure (return false;) as just warnings
+ only shown when debuging*/
+bool pkgPackageManager::SmartConfigure(PkgIterator Pkg, int const Depth)
+{
+ // If this is true, only check and correct and dependencies without the Loop flag
+ bool const PkgLoop = List->IsFlag(Pkg,pkgOrderList::Loop);
- // Perform the configuring
- for (pkgOrderList::iterator I = OList.begin(); I != OList.end(); I++)
- {
- PkgIterator Pkg(Cache,*I);
-
- if (Configure(Pkg) == false)
- return false;
-
- List->Flag(Pkg,pkgOrderList::Configured,pkgOrderList::States);
+ if (Debug) {
+ VerIterator InstallVer = VerIterator(Cache,Cache[Pkg].InstallVer);
+ clog << OutputInDepth(Depth) << "SmartConfigure " << Pkg.FullName() << " (" << InstallVer.VerStr() << ")";
+ if (PkgLoop)
+ clog << " (Only Correct Dependencies)";
+ clog << endl;
}
- // Sanity Check
- if (List->IsFlag(Pkg,pkgOrderList::Configured) == false)
- return _error->Error("Internal error, could not immediate configure %s",Pkg.Name());
-
- return true;
-}
- /*}}}*/
-// PM::DepAdd - Add all dependents to the oder list /*{{{*/
-// ---------------------------------------------------------------------
-/* This recursively adds all dependents to the order list */
-bool pkgPackageManager::DepAdd(pkgOrderList &OList,PkgIterator Pkg,int Depth)
-{
- if (OList.IsFlag(Pkg,pkgOrderList::Added) == true)
- return true;
- if (List->IsFlag(Pkg,pkgOrderList::Configured) == true)
- return true;
- if (List->IsFlag(Pkg,pkgOrderList::UnPacked) == false)
- return false;
-
-
- // Put the package on the list
- OList.push_back(Pkg);
- OList.Flag(Pkg,pkgOrderList::Added);
- Depth++;
-
- // Check the dependencies to see if they are all satisfied.
- bool Bad = false;
- for (DepIterator D = Cache[Pkg].InstVerIter(Cache).DependsList(); D.end() == false;)
- {
- if (D->Type != pkgCache::Dep::Depends && D->Type != pkgCache::Dep::PreDepends)
- {
- D++;
- continue;
- }
+ VerIterator const instVer = Cache[Pkg].InstVerIter(Cache);
- // Grok or groups
- Bad = true;
- for (bool LastOR = true; D.end() == false && LastOR == true; D++)
+ /* Because of the ordered list, most dependencies should be unpacked,
+ however if there is a loop (A depends on B, B depends on A) this will not
+ be the case, so check for dependencies before configuring. */
+ bool Bad = false, Changed = false;
+ const unsigned int max_loops = _config->FindI("APT::pkgPackageManager::MaxLoopCount", 500);
+ unsigned int i=0;
+ do
+ {
+ Changed = false;
+ for (DepIterator D = instVer.DependsList(); D.end() == false; )
{
- LastOR = (D->CompareOp & pkgCache::Dep::Or) == pkgCache::Dep::Or;
-
+ // Compute a single dependency element (glob or)
+ pkgCache::DepIterator Start, End;
+ D.GlobOr(Start,End);
+
+ if (End->Type != pkgCache::Dep::Depends)
+ continue;
+ Bad = true;
+
+ // Search for dependencies which are unpacked but aren't configured yet (maybe loops)
+ for (DepIterator Cur = Start; true; ++Cur)
+ {
+ SPtrArray<Version *> VList = Cur.AllTargets();
+
+ for (Version **I = VList; *I != 0; ++I)
+ {
+ VerIterator Ver(Cache,*I);
+ PkgIterator DepPkg = Ver.ParentPkg();
+
+ // Check if the current version of the package is available and will satisfy this dependency
+ if (DepPkg.CurrentVer() == Ver && List->IsNow(DepPkg) == true &&
+ List->IsFlag(DepPkg,pkgOrderList::Removed) == false &&
+ DepPkg.State() == PkgIterator::NeedsNothing)
+ {
+ Bad = false;
+ break;
+ }
+
+ // Check if the version that is going to be installed will satisfy the dependency
+ if (Cache[DepPkg].InstallVer != *I)
+ continue;
+
+ if (List->IsFlag(DepPkg,pkgOrderList::UnPacked))
+ {
+ if (List->IsFlag(DepPkg,pkgOrderList::Loop) && PkgLoop)
+ {
+ // This dependency has already been dealt with by another SmartConfigure on Pkg
+ Bad = false;
+ break;
+ }
+ /* Check for a loop to prevent one forming
+ If A depends on B and B depends on A, SmartConfigure will
+ just hop between them if this is not checked. Dont remove the
+ loop flag after finishing however as loop is already set.
+ This means that there is another SmartConfigure call for this
+ package and it will remove the loop flag */
+ if (PkgLoop == false)
+ List->Flag(Pkg,pkgOrderList::Loop);
+ if (SmartConfigure(DepPkg, Depth + 1) == true)
+ {
+ Bad = false;
+ if (List->IsFlag(DepPkg,pkgOrderList::Loop) == false)
+ Changed = true;
+ }
+ if (PkgLoop == false)
+ List->RmFlag(Pkg,pkgOrderList::Loop);
+ // If SmartConfigure was succesfull, Bad is false, so break
+ if (Bad == false)
+ break;
+ }
+ else if (List->IsFlag(DepPkg,pkgOrderList::Configured))
+ {
+ Bad = false;
+ break;
+ }
+ }
+ if (Cur == End)
+ break;
+ }
+
if (Bad == false)
continue;
- Version **VList = D.AllTargets();
- for (Version **I = VList; *I != 0 && Bad == true; I++)
+ // Check for dependencies that have not been unpacked, probably due to loops.
+ for (DepIterator Cur = Start; true; ++Cur)
{
- VerIterator Ver(Cache,*I);
- PkgIterator Pkg = Ver.ParentPkg();
+ SPtrArray<Version *> VList = Cur.AllTargets();
- // See if the current version is ok
- if (Pkg.CurrentVer() == Ver && List->IsNow(Pkg) == true &&
- Pkg.State() == PkgIterator::NeedsNothing)
+ for (Version **I = VList; *I != 0; ++I)
{
- Bad = false;
- continue;
+ VerIterator Ver(Cache,*I);
+ PkgIterator DepPkg = Ver.ParentPkg();
+
+ // Check if the version that is going to be installed will satisfy the dependency
+ if (Cache[DepPkg].InstallVer != *I || List->IsNow(DepPkg) == false)
+ continue;
+
+ if (PkgLoop == true)
+ {
+ if (Debug)
+ std::clog << OutputInDepth(Depth) << "Package " << Pkg << " loops in SmartConfigure" << std::endl;
+ Bad = false;
+ break;
+ }
+ else
+ {
+ if (Debug)
+ clog << OutputInDepth(Depth) << "Unpacking " << DepPkg.FullName() << " to avoid loop " << Cur << endl;
+ if (PkgLoop == false)
+ List->Flag(Pkg,pkgOrderList::Loop);
+ if (SmartUnPack(DepPkg, true, Depth + 1) == true)
+ {
+ Bad = false;
+ if (List->IsFlag(DepPkg,pkgOrderList::Loop) == false)
+ Changed = true;
+ }
+ if (PkgLoop == false)
+ List->RmFlag(Pkg,pkgOrderList::Loop);
+ if (Bad == false)
+ break;
+ }
}
-
- // Not the install version
- if (Cache[Pkg].InstallVer != *I ||
- (Cache[Pkg].Keep() == true && Pkg.State() == PkgIterator::NeedsNothing))
- continue;
- if (List->IsFlag(Pkg,pkgOrderList::UnPacked) == true)
- Bad = !DepAdd(OList,Pkg,Depth);
- if (List->IsFlag(Pkg,pkgOrderList::Configured) == true)
- Bad = false;
+
+ if (Cur == End)
+ break;
}
- delete [] VList;
- }
-
- if (Bad == true)
- {
- OList.Flag(Pkg,0,pkgOrderList::Added);
- OList.pop_back();
- Depth--;
- return false;
+
+ if (Bad == true && Changed == false && Debug == true)
+ std::clog << OutputInDepth(Depth) << "Could not satisfy " << Start << std::endl;
}
+ if (i++ > max_loops)
+ return _error->Error("Internal error: MaxLoopCount reached in SmartUnPack for %s, aborting", Pkg.FullName().c_str());
+ } while (Changed == true);
+
+ if (Bad) {
+ if (Debug)
+ _error->Warning(_("Could not configure '%s'. "),Pkg.FullName().c_str());
+ return false;
}
- Depth--;
+ if (PkgLoop) return true;
+
+ static std::string const conf = _config->Find("PackageManager::Configure","all");
+ static bool const ConfigurePkgs = (conf == "all" || conf == "smart");
+
+ if (List->IsFlag(Pkg,pkgOrderList::Configured))
+ return _error->Error("Internal configure error on '%s'.", Pkg.FullName().c_str());
+
+ if (ConfigurePkgs == true && Configure(Pkg) == false)
+ return false;
+
+ List->Flag(Pkg,pkgOrderList::Configured,pkgOrderList::States);
+
+ if ((Cache[Pkg].InstVerIter(Cache)->MultiArch & pkgCache::Version::Same) == pkgCache::Version::Same)
+ for (PkgIterator P = Pkg.Group().PackageList();
+ P.end() == false; P = Pkg.Group().NextPkg(P))
+ {
+ if (Pkg == P || List->IsFlag(P,pkgOrderList::Configured) == true ||
+ Cache[P].InstallVer == 0 || (P.CurrentVer() == Cache[P].InstallVer &&
+ (Cache[Pkg].iFlags & pkgDepCache::ReInstall) != pkgDepCache::ReInstall))
+ continue;
+ SmartConfigure(P, (Depth +1));
+ }
+
+ // Sanity Check
+ if (List->IsFlag(Pkg,pkgOrderList::Configured) == false)
+ return _error->Error(_("Could not configure '%s'. "),Pkg.FullName().c_str());
+
return true;
}
/*}}}*/
// Woops, it will not be re-installed!
if (List->IsFlag(Pkg,pkgOrderList::InList) == false)
return false;
+
+ // Essential packages get special treatment
+ bool IsEssential = false;
+ if ((Pkg->Flags & pkgCache::Flag::Essential) != 0 ||
+ (Pkg->Flags & pkgCache::Flag::Important) != 0)
+ IsEssential = true;
+
+ /* Check for packages that are the dependents of essential packages and
+ promote them too */
+ if (Pkg->CurrentVer != 0)
+ {
+ for (DepIterator D = Pkg.RevDependsList(); D.end() == false &&
+ IsEssential == false; ++D)
+ if (D->Type == pkgCache::Dep::Depends || D->Type == pkgCache::Dep::PreDepends)
+ if ((D.ParentPkg()->Flags & pkgCache::Flag::Essential) != 0 ||
+ (D.ParentPkg()->Flags & pkgCache::Flag::Important) != 0)
+ IsEssential = true;
+ }
+
+ if (IsEssential == true)
+ {
+ if (_config->FindB("APT::Force-LoopBreak",false) == false)
+ return _error->Error(_("This installation run will require temporarily "
+ "removing the essential package %s due to a "
+ "Conflicts/Pre-Depends loop. This is often bad, "
+ "but if you really want to do it, activate the "
+ "APT::Force-LoopBreak option."),Pkg.FullName().c_str());
+ }
bool Res = SmartRemove(Pkg);
if (Cache[Pkg].Delete() == false)
return true;
List->Flag(Pkg,pkgOrderList::Configured,pkgOrderList::States);
- return Remove(Pkg);
+
+ return Remove(Pkg,(Cache[Pkg].iFlags & pkgDepCache::Purge) == pkgDepCache::Purge);
}
/*}}}*/
// PM::SmartUnPack - Install helper /*{{{*/
// ---------------------------------------------------------------------
-/* This performs the task of handling pre-depends. */
+/* This puts the system in a state where it can Unpack Pkg, if Pkg is allready
+ unpacked, or when it has been unpacked, if Immediate==true it configures it. */
bool pkgPackageManager::SmartUnPack(PkgIterator Pkg)
{
- // Check if it is already unpacked
- if (Pkg.State() == pkgCache::PkgIterator::NeedsConfigure &&
- Cache[Pkg].Keep() == true)
- {
- List->Flag(Pkg,pkgOrderList::UnPacked,pkgOrderList::States);
- if (List->IsFlag(Pkg,pkgOrderList::Immediate) == true)
- if (SmartConfigure(Pkg) == false)
- return _error->Error("Internal Error, Could not perform immediate configuraton");
- return true;
+ return SmartUnPack(Pkg, true, 0);
+}
+bool pkgPackageManager::SmartUnPack(PkgIterator Pkg, bool const Immediate, int const Depth)
+{
+ bool PkgLoop = List->IsFlag(Pkg,pkgOrderList::Loop);
+
+ if (Debug) {
+ clog << OutputInDepth(Depth) << "SmartUnPack " << Pkg.FullName();
+ VerIterator InstallVer = VerIterator(Cache,Cache[Pkg].InstallVer);
+ if (Pkg.CurrentVer() == 0)
+ clog << " (install version " << InstallVer.VerStr() << ")";
+ else
+ clog << " (replace version " << Pkg.CurrentVer().VerStr() << " with " << InstallVer.VerStr() << ")";
+ if (PkgLoop)
+ clog << " (Only Perform PreUnpack Checks)";
+ clog << endl;
}
-
- /* See if this packages install version has any predependencies
- that are not met by 'now' packages. */
- for (DepIterator D = Cache[Pkg].InstVerIter(Cache).DependsList();
- D.end() == false; D++)
+
+ VerIterator const instVer = Cache[Pkg].InstVerIter(Cache);
+
+ /* PreUnpack Checks: This loop checks and attempts to rectify and problems that would prevent the package being unpacked.
+ It addresses: PreDepends, Conflicts, Obsoletes and Breaks (DpkgBreaks). Any resolutions that do not require it should
+ avoid configuration (calling SmartUnpack with Immediate=true), this is because when unpacking some packages with
+ complex dependancy structures, trying to configure some packages while breaking the loops can complicate things .
+ This will be either dealt with if the package is configured as a dependency of Pkg (if and when Pkg is configured),
+ or by the ConfigureAll call at the end of the for loop in OrderInstall. */
+ bool Changed = false;
+ const unsigned int max_loops = _config->FindI("APT::pkgPackageManager::MaxLoopCount", 500);
+ unsigned int i = 0;
+ do
{
- if (D->Type == pkgCache::Dep::PreDepends)
+ Changed = false;
+ for (DepIterator D = instVer.DependsList(); D.end() == false; )
{
- // Look for possible ok targets.
- Version **VList = D.AllTargets();
- bool Bad = true;
- for (Version **I = VList; *I != 0 && Bad == true; I++)
- {
- VerIterator Ver(Cache,*I);
- PkgIterator Pkg = Ver.ParentPkg();
-
- // See if the current version is ok
- if (Pkg.CurrentVer() == Ver && List->IsNow(Pkg) == true &&
- Pkg.State() == PkgIterator::NeedsNothing)
+ // Compute a single dependency element (glob or)
+ pkgCache::DepIterator Start, End;
+ D.GlobOr(Start,End);
+
+ if (End->Type == pkgCache::Dep::PreDepends)
+ {
+ bool Bad = true;
+ if (Debug)
+ clog << OutputInDepth(Depth) << "PreDepends order for " << Pkg.FullName() << std::endl;
+
+ // Look for easy targets: packages that are already okay
+ for (DepIterator Cur = Start; Bad == true; ++Cur)
{
- Bad = false;
- continue;
+ SPtrArray<Version *> VList = Cur.AllTargets();
+ for (Version **I = VList; *I != 0; ++I)
+ {
+ VerIterator Ver(Cache,*I);
+ PkgIterator Pkg = Ver.ParentPkg();
+
+ // See if the current version is ok
+ if (Pkg.CurrentVer() == Ver && List->IsNow(Pkg) == true &&
+ Pkg.State() == PkgIterator::NeedsNothing)
+ {
+ Bad = false;
+ if (Debug)
+ clog << OutputInDepth(Depth) << "Found ok package " << Pkg.FullName() << endl;
+ break;
+ }
+ }
+ if (Cur == End)
+ break;
+ }
+
+ // Look for something that could be configured.
+ for (DepIterator Cur = Start; Bad == true; ++Cur)
+ {
+ SPtrArray<Version *> VList = Cur.AllTargets();
+ for (Version **I = VList; *I != 0; ++I)
+ {
+ VerIterator Ver(Cache,*I);
+ PkgIterator Pkg = Ver.ParentPkg();
+
+ // Not the install version
+ if (Cache[Pkg].InstallVer != *I ||
+ (Cache[Pkg].Keep() == true && Pkg.State() == PkgIterator::NeedsNothing))
+ continue;
+
+ if (List->IsFlag(Pkg,pkgOrderList::Configured))
+ {
+ Bad = false;
+ break;
+ }
+
+ // check if it needs unpack or if if configure is enough
+ if (List->IsFlag(Pkg,pkgOrderList::UnPacked) == false)
+ {
+ if (Debug)
+ clog << OutputInDepth(Depth) << "Trying to SmartUnpack " << Pkg.FullName() << endl;
+ // SmartUnpack with the ImmediateFlag to ensure its really ready
+ if (SmartUnPack(Pkg, true, Depth + 1) == true)
+ {
+ Bad = false;
+ if (List->IsFlag(Pkg,pkgOrderList::Loop) == false)
+ Changed = true;
+ break;
+ }
+ }
+ else
+ {
+ if (Debug)
+ clog << OutputInDepth(Depth) << "Trying to SmartConfigure " << Pkg.FullName() << endl;
+ if (SmartConfigure(Pkg, Depth + 1) == true)
+ {
+ Bad = false;
+ if (List->IsFlag(Pkg,pkgOrderList::Loop) == false)
+ Changed = true;
+ break;
+ }
+ }
+ }
+ }
+
+ if (Bad == true)
+ {
+ if (Start == End)
+ return _error->Error("Couldn't configure pre-depend %s for %s, "
+ "probably a dependency cycle.",
+ End.TargetPkg().FullName().c_str(),Pkg.FullName().c_str());
}
+ else
+ continue;
}
-
- // Look for something that could be configured.
- for (Version **I = VList; *I != 0 && Bad == true; I++)
+ else if (End->Type == pkgCache::Dep::Conflicts ||
+ End->Type == pkgCache::Dep::Obsoletes)
{
- VerIterator Ver(Cache,*I);
- PkgIterator Pkg = Ver.ParentPkg();
-
- // Not the install version
- if (Cache[Pkg].InstallVer != *I ||
- (Cache[Pkg].Keep() == true && Pkg.State() == PkgIterator::NeedsNothing))
- continue;
+ /* Look for conflicts. Two packages that are both in the install
+ state cannot conflict so we don't check.. */
+ SPtrArray<Version *> VList = End.AllTargets();
+ for (Version **I = VList; *I != 0; I++)
+ {
+ VerIterator Ver(Cache,*I);
+ PkgIterator ConflictPkg = Ver.ParentPkg();
+ VerIterator InstallVer(Cache,Cache[ConflictPkg].InstallVer);
- Bad = !SmartConfigure(Pkg);
+ // See if the current version is conflicting
+ if (ConflictPkg.CurrentVer() == Ver && List->IsNow(ConflictPkg))
+ {
+ clog << OutputInDepth(Depth) << Pkg.FullName() << " conflicts with " << ConflictPkg.FullName() << endl;
+ /* If a loop is not present or has not yet been detected, attempt to unpack packages
+ to resolve this conflict. If there is a loop present, remove packages to resolve this conflict */
+ if (List->IsFlag(ConflictPkg,pkgOrderList::Loop) == false)
+ {
+ if (Cache[ConflictPkg].Keep() == 0 && Cache[ConflictPkg].InstallVer != 0)
+ {
+ if (Debug)
+ clog << OutputInDepth(Depth) << OutputInDepth(Depth) << "Unpacking " << ConflictPkg.FullName() << " to prevent conflict" << endl;
+ List->Flag(Pkg,pkgOrderList::Loop);
+ if (SmartUnPack(ConflictPkg,false, Depth + 1) == true)
+ if (List->IsFlag(ConflictPkg,pkgOrderList::Loop) == false)
+ Changed = true;
+ // Remove loop to allow it to be used later if needed
+ List->RmFlag(Pkg,pkgOrderList::Loop);
+ }
+ else if (EarlyRemove(ConflictPkg) == false)
+ return _error->Error("Internal Error, Could not early remove %s (1)",ConflictPkg.FullName().c_str());
+ }
+ else if (List->IsFlag(ConflictPkg,pkgOrderList::Removed) == false)
+ {
+ if (Debug)
+ clog << OutputInDepth(Depth) << "Because of conficts knot, removing " << ConflictPkg.FullName() << " to conflict violation" << endl;
+ if (EarlyRemove(ConflictPkg) == false)
+ return _error->Error("Internal Error, Could not early remove %s (2)",ConflictPkg.FullName().c_str());
+ }
+ }
+ }
}
-
- delete [] VList;
-
- if (Bad == true)
- return _error->Error("Internal Error, Couldn't configure a pre-depend");
-
- continue;
- }
-
- if (D->Type == pkgCache::Dep::Conflicts)
- {
- /* Look for conflicts. Two packages that are both in the install
- state cannot conflict so we don't check.. */
- Version **VList = D.AllTargets();
- for (Version **I = VList; *I != 0; I++)
+ else if (End->Type == pkgCache::Dep::DpkgBreaks)
{
- VerIterator Ver(Cache,*I);
- PkgIterator Pkg = Ver.ParentPkg();
-
- // See if the current version is conflicting
- if (Pkg.CurrentVer() == Ver && List->IsNow(Pkg) == true)
+ SPtrArray<Version *> VList = End.AllTargets();
+ for (Version **I = VList; *I != 0; ++I)
{
- if (EarlyRemove(Pkg) == false)
- return _error->Error("Internal Error, Could not early remove %s",Pkg.Name());
+ VerIterator Ver(Cache,*I);
+ PkgIterator BrokenPkg = Ver.ParentPkg();
+ if (BrokenPkg.CurrentVer() != Ver)
+ {
+ if (Debug)
+ std::clog << OutputInDepth(Depth) << " Ignore not-installed version " << Ver.VerStr() << " of " << Pkg.FullName() << " for " << End << std::endl;
+ continue;
+ }
+
+ // Check if it needs to be unpacked
+ if (List->IsFlag(BrokenPkg,pkgOrderList::InList) && Cache[BrokenPkg].Delete() == false &&
+ List->IsNow(BrokenPkg))
+ {
+ if (List->IsFlag(BrokenPkg,pkgOrderList::Loop) && PkgLoop)
+ {
+ // This dependancy has already been dealt with by another SmartUnPack on Pkg
+ break;
+ }
+ else
+ {
+ // Found a break, so see if we can unpack the package to avoid it
+ // but do not set loop if another SmartUnPack already deals with it
+ // Also, avoid it if the package we would unpack pre-depends on this one
+ VerIterator InstallVer(Cache,Cache[BrokenPkg].InstallVer);
+ bool circle = false;
+ for (pkgCache::DepIterator D = InstallVer.DependsList(); D.end() == false; ++D)
+ {
+ if (D->Type != pkgCache::Dep::PreDepends)
+ continue;
+ SPtrArray<Version *> VL = D.AllTargets();
+ for (Version **I = VL; *I != 0; ++I)
+ {
+ VerIterator V(Cache,*I);
+ PkgIterator P = V.ParentPkg();
+ // we are checking for installation as an easy 'protection' against or-groups and (unchosen) providers
+ if (P != Pkg || (P.CurrentVer() != V && Cache[P].InstallVer != V))
+ continue;
+ circle = true;
+ break;
+ }
+ if (circle == true)
+ break;
+ }
+ if (circle == true)
+ {
+ if (Debug)
+ clog << OutputInDepth(Depth) << " Avoiding " << End << " avoided as " << BrokenPkg.FullName() << " has a pre-depends on " << Pkg.FullName() << std::endl;
+ continue;
+ }
+ else
+ {
+ if (Debug)
+ {
+ clog << OutputInDepth(Depth) << " Unpacking " << BrokenPkg.FullName() << " to avoid " << End;
+ if (PkgLoop == true)
+ clog << " (Looping)";
+ clog << std::endl;
+ }
+ if (PkgLoop == false)
+ List->Flag(Pkg,pkgOrderList::Loop);
+ if (SmartUnPack(BrokenPkg, false, Depth + 1) == true)
+ {
+ if (List->IsFlag(BrokenPkg,pkgOrderList::Loop) == false)
+ Changed = true;
+ }
+ if (PkgLoop == false)
+ List->RmFlag(Pkg,pkgOrderList::Loop);
+ }
+ }
+ }
+ // Check if a package needs to be removed
+ else if (Cache[BrokenPkg].Delete() == true && List->IsFlag(BrokenPkg,pkgOrderList::Configured) == false)
+ {
+ if (Debug)
+ clog << OutputInDepth(Depth) << " Removing " << BrokenPkg.FullName() << " to avoid " << End << endl;
+ SmartRemove(BrokenPkg);
+ }
}
}
- delete [] VList;
}
- }
-
- // Check for reverse conflicts.
- CheckRConflicts(Pkg,Pkg.RevDependsList(),
- Cache[Pkg].InstVerIter(Cache).VerStr());
- for (PrvIterator P = Cache[Pkg].InstVerIter(Cache).ProvidesList();
- P.end() == false; P++)
- CheckRConflicts(Pkg,P.ParentPkg().RevDependsList(),P.ProvideVersion());
+ if (i++ > max_loops)
+ return _error->Error("Internal error: APT::pkgPackageManager::MaxLoopCount reached in SmartConfigure for %s, aborting", Pkg.FullName().c_str());
+ } while (Changed == true);
- if (Install(Pkg,FileNames[Pkg->ID]) == false)
- return false;
+ // Check for reverse conflicts.
+ if (CheckRConflicts(Pkg,Pkg.RevDependsList(),
+ instVer.VerStr()) == false)
+ return false;
+ for (PrvIterator P = instVer.ProvidesList();
+ P.end() == false; ++P)
+ if (Pkg->Group != P.OwnerPkg()->Group)
+ CheckRConflicts(Pkg,P.ParentPkg().RevDependsList(),P.ProvideVersion());
+
+ if (PkgLoop)
+ return true;
+
List->Flag(Pkg,pkgOrderList::UnPacked,pkgOrderList::States);
-
- // Perform immedate configuration of the package.
- if (List->IsFlag(Pkg,pkgOrderList::Immediate) == true)
- if (SmartConfigure(Pkg) == false)
- return _error->Error("Internal Error, Could not perform immediate configuraton");
+
+ if (Immediate == true && (instVer->MultiArch & pkgCache::Version::Same) == pkgCache::Version::Same)
+ {
+ /* Do lockstep M-A:same unpacking in two phases:
+ First unpack all installed architectures, then the not installed.
+ This way we avoid that M-A: enabled packages are installed before
+ their older non-M-A enabled packages are replaced by newer versions */
+ bool const installed = Pkg->CurrentVer != 0;
+ if (installed == true && Install(Pkg,FileNames[Pkg->ID]) == false)
+ return false;
+ for (PkgIterator P = Pkg.Group().PackageList();
+ P.end() == false; P = Pkg.Group().NextPkg(P))
+ {
+ if (P->CurrentVer == 0 || P == Pkg || List->IsFlag(P,pkgOrderList::UnPacked) == true ||
+ Cache[P].InstallVer == 0 || (P.CurrentVer() == Cache[P].InstallVer &&
+ (Cache[Pkg].iFlags & pkgDepCache::ReInstall) != pkgDepCache::ReInstall))
+ continue;
+ if (SmartUnPack(P, false, Depth + 1) == false)
+ return false;
+ }
+ if (installed == false && Install(Pkg,FileNames[Pkg->ID]) == false)
+ return false;
+ for (PkgIterator P = Pkg.Group().PackageList();
+ P.end() == false; P = Pkg.Group().NextPkg(P))
+ {
+ if (P->CurrentVer != 0 || P == Pkg || List->IsFlag(P,pkgOrderList::UnPacked) == true ||
+ Cache[P].InstallVer == 0 || (P.CurrentVer() == Cache[P].InstallVer &&
+ (Cache[Pkg].iFlags & pkgDepCache::ReInstall) != pkgDepCache::ReInstall))
+ continue;
+ if (SmartUnPack(P, false, Depth + 1) == false)
+ return false;
+ }
+ }
+ // packages which are already unpacked don't need to be unpacked again
+ else if (Pkg.State() != pkgCache::PkgIterator::NeedsConfigure && Install(Pkg,FileNames[Pkg->ID]) == false)
+ return false;
+
+ if (Immediate == true) {
+ // Perform immedate configuration of the package.
+ if (SmartConfigure(Pkg, Depth + 1) == false)
+ _error->Warning(_("Could not perform immediate configuration on '%s'. "
+ "Please see man 5 apt.conf under APT::Immediate-Configure for details. (%d)"),Pkg.FullName().c_str(),2);
+ }
return true;
}
// PM::OrderInstall - Installation ordering routine /*{{{*/
// ---------------------------------------------------------------------
/* */
-bool pkgPackageManager::OrderInstall()
+pkgPackageManager::OrderResult pkgPackageManager::OrderInstall()
{
- delete List;
- List = new pkgOrderList(Cache);
+ if (CreateOrderList() == false)
+ return Failed;
+
+ Reset();
- // Generate the list of affected packages and sort it
- for (PkgIterator I = Cache.PkgBegin(); I.end() == false; I++)
+ if (Debug == true)
+ clog << "Beginning to order" << endl;
+
+ bool const ordering =
+ _config->FindB("PackageManager::UnpackAll",true) ?
+ List->OrderUnpack(FileNames) : List->OrderCritical();
+ if (ordering == false)
{
- // Consider all depends
- if ((I->Flags & pkgCache::Flag::Essential) == pkgCache::Flag::Essential)
- {
- List->Flag(I,pkgOrderList::Immediate);
- if (Cache[I].InstallVer != 0)
- for (DepIterator D = Cache[I].InstVerIter(Cache).DependsList();
- D.end() == false; D++)
- if (D->Type == pkgCache::Dep::Depends || D->Type == pkgCache::Dep::PreDepends)
- List->Flag(D.TargetPkg(),pkgOrderList::Immediate);
- if (I->CurrentVer != 0)
- for (DepIterator D = I.CurrentVer().DependsList();
- D.end() == false; D++)
- if (D->Type == pkgCache::Dep::Depends || D->Type == pkgCache::Dep::PreDepends)
- List->Flag(D.TargetPkg(),pkgOrderList::Immediate);
- }
-
- // Not interesting
- if ((Cache[I].Keep() == true ||
- Cache[I].InstVerIter(Cache) == I.CurrentVer()) &&
- I.State() == pkgCache::PkgIterator::NeedsNothing)
- continue;
-
- // Append it to the list
- List->push_back(I);
-
- if ((I->Flags & pkgCache::Flag::ImmediateConf) == pkgCache::Flag::ImmediateConf)
- List->Flag(I,pkgOrderList::Immediate);
+ _error->Error("Internal ordering error");
+ return Failed;
}
- if (List->OrderUnpack() == false)
- return _error->Error("Internal ordering error");
+ if (Debug == true)
+ clog << "Done ordering" << endl;
- for (pkgOrderList::iterator I = List->begin(); I != List->end(); I++)
+ bool DoneSomething = false;
+ for (pkgOrderList::iterator I = List->begin(); I != List->end(); ++I)
{
PkgIterator Pkg(Cache,*I);
+ if (List->IsNow(Pkg) == false)
+ {
+ if (!List->IsFlag(Pkg,pkgOrderList::Configured) && !NoImmConfigure) {
+ if (SmartConfigure(Pkg, 0) == false && Debug)
+ _error->Warning("Internal Error, Could not configure %s",Pkg.FullName().c_str());
+ // FIXME: The above warning message might need changing
+ } else {
+ if (Debug == true)
+ clog << "Skipping already done " << Pkg.FullName() << endl;
+ }
+ continue;
+
+ }
+
+ if (List->IsMissing(Pkg) == true)
+ {
+ if (Debug == true)
+ clog << "Sequence completed at " << Pkg.FullName() << endl;
+ if (DoneSomething == false)
+ {
+ _error->Error("Internal Error, ordering was unable to handle the media swap");
+ return Failed;
+ }
+ return Incomplete;
+ }
+
// Sanity check
- if (Cache[Pkg].Keep() == true && Pkg.State() == pkgCache::PkgIterator::NeedsNothing)
- return _error->Error("Internal Error, trying to manipulate a kept package");
+ if (Cache[Pkg].Keep() == true &&
+ Pkg.State() == pkgCache::PkgIterator::NeedsNothing &&
+ (Cache[Pkg].iFlags & pkgDepCache::ReInstall) != pkgDepCache::ReInstall)
+ {
+ _error->Error("Internal Error, trying to manipulate a kept package (%s)",Pkg.FullName().c_str());
+ return Failed;
+ }
// Perform a delete or an install
if (Cache[Pkg].Delete() == true)
{
if (SmartRemove(Pkg) == false)
- return false;
+ return Failed;
}
else
- if (SmartUnPack(Pkg) == false)
- return false;
+ if (SmartUnPack(Pkg,List->IsFlag(Pkg,pkgOrderList::Immediate),0) == false)
+ return Failed;
+ DoneSomething = true;
+
+ if (ImmConfigureAll) {
+ /* ConfigureAll here to pick up and packages left unconfigured becuase they were unpacked in the
+ "PreUnpack Checks" section */
+ if (!ConfigureAll())
+ return Failed;
+ }
}
-
+
// Final run through the configure phase
if (ConfigureAll() == false)
- return false;
+ return Failed;
// Sanity check
- for (pkgOrderList::iterator I = List->begin(); I != List->end(); I++)
+ for (pkgOrderList::iterator I = List->begin(); I != List->end(); ++I)
+ {
if (List->IsFlag(*I,pkgOrderList::Configured) == false)
- return _error->Error("Internal error, packages left unconfigured. %s",
- PkgIterator(Cache,*I).Name());
-
- return true;
+ {
+ _error->Error("Internal error, packages left unconfigured. %s",
+ PkgIterator(Cache,*I).FullName().c_str());
+ return Failed;
+ }
+ }
+
+ return Completed;
}
/*}}}*/
+// PM::DoInstallPostFork - Does install part that happens after the fork /*{{{*/
+// ---------------------------------------------------------------------
+pkgPackageManager::OrderResult
+pkgPackageManager::DoInstallPostFork(int statusFd)
+{
+ if(statusFd > 0)
+ // FIXME: use SetCloseExec here once it taught about throwing
+ // exceptions instead of doing _exit(100) on failure
+ fcntl(statusFd,F_SETFD,FD_CLOEXEC);
+ bool goResult = Go(statusFd);
+ if(goResult == false)
+ return Failed;
+
+ return Res;
+};
+
// PM::DoInstall - Does the installation /*{{{*/
// ---------------------------------------------------------------------
/* This uses the filenames in FileNames and the information in the
DepCache to perform the installation of packages.*/
-bool pkgPackageManager::DoInstall()
+pkgPackageManager::OrderResult pkgPackageManager::DoInstall(int statusFd)
{
- return OrderInstall() && Go();
+ if(DoInstallPreFork() == Failed)
+ return Failed;
+
+ return DoInstallPostFork(statusFd);
}
- /*}}}*/
+ /*}}}*/
projects / apt.git / blobdiff